Home / 758,819.80-1,138,229.70-715,274.20

Finding the Fourth Proportional to 758,819.80, 1,138,229.70 and 715,274.20

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Solution

The fourth proportional to 758,819.80, 1,138,229.70 and 715,274.20 is: 1,072,911.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,819.80 : 1,138,229.70 = 715,274.20 : x
  2. Step 2: Convert to fraction form
    758,819.80/1,138,229.70 = 715,274.20/x
  3. Step 3: Cross multiply
    758,819.80x = 1,138,229.70 × 715,274.20
  4. Step 4: Simplify right side
    758,819.80x = 814,146,338,083.74
  5. Step 5: Solve for x
    x = 814,146,338,083.74/758,819.80
  6. Step 6: Final answer
    x = 1,072,911.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.